<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        html{
            font-size: 15px;
        }
        .big{
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            align-items: center;
        }
        .big div{
            border: 1px solid red;
            flex: 1;
            height: 100%;
        }
        .bottom{
            position: fixed;
            bottom: 0;
            height: 1rem;
            width: 100%;
            box-sizing: border-box;
            border: 1px solid red;
        }
        .bigfist{
            display: flex;
            flex-direction: row;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }
        .bigbig{
            display: flex;
            flex-direction: column;
            width: 100%;
        }
        .bigfist ul{
            margin: 0;
            padding: 0;
            flex: 2;
            display: flex;
            justify-content: space-between;
            list-style: none;
            border: 1px solid yellow;
            box-sizing: border-box;
            align-items: center;
        }
        .bigfist ul li{
            flex: 1;
            color: #fff;
            background-color: red;
            height: 100%;
        }
        .bigfist h2{
            height: 100%;
            margin: 0;
            border: 1px solid green;
            display: flex;
        }
        ul{
            margin: 0;
            padding: 0;
            width: 500px;
            border: 1px solid red;
            height: 50px;
            list-style: none;
            display: flex;
            align-items: center;
            text-align: center;
        }
        ul li {
            flex: 1;
            background-color: yellow;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            height: 100%;
        }
    </style>
</head>
<body>
    <ul>
        <li>fads1</li>
        <li>2123</li>
        <li>3121</li>
        <li>12314</li>
        <li>23215</li>
    </ul>
    <!-- <div class="bigbig"> -->
        <div class="bigfist">
            <h2>那你</h2>
            <!-- <p>das</p> -->
            <ul>
                <li>1</li>
                <li>2</li>
                <li>3</li>
                <li>4</li>
                <li>5</li>
            </ul>
            <h2>323</h2>
        </div>
        <div class="big">
            <div class="first">
                <p>dfadfaffds</p>
                <p>1232</p>
            </div>
            <div class="two">
                <p>dfadfaffds</p>
                <p>1232</p>
            </div>
            <div class="three">
                <p>dfadfaffds(fdsfdsafdafdasafasddfwere)</p>
                <p>1232</p>
            </div>
            <div class="fore">
                <p>dfadfaffds</p>
                <p>1232</p>
            </div>
        </div>
    <!-- </div> -->
    <div class="bottom"></div>
</body>
</html>